Glossary
The percentage of a creator audience that interacts with a post (likes, comments, shares, saves) relative to reach or follower count. A quality signal, not a revenue signal.
Engagement rate is the percentage of a creator's audience that interacts with a post. It is a quality signal (the audience is paying attention and reacting) but not a revenue signal (they may not buy), and confusing the two is a common reporting error.
Engagement rate is inversely correlated with audience size, which is why micro-influencers often outperform mega-creators on conversion. A high engagement rate means the audience is paying attention, which is the precondition for a sponsored segment to convert. But engagement is not conversion. A creator with a 7% engagement rate and a passionate audience that does not buy your category is a worse fit than a creator with a 3% engagement rate whose audience already purchases in your category. Use engagement rate as a quality filter at discovery, not as a success metric at reporting. Read the analytics key metrics article for the metrics that actually predict revenue.
Infmap surfaces engagement rate at discovery alongside watch-through, average views, and audience demographics, so it is one of several quality signals rather than the headline number. At reporting, the headline numbers are conversion rate, CPA, and attributable revenue, because those are the metrics that defend the budget to finance. Engagement is a discovery input, not a reporting output.
A brand compares two creators. Creator A has 500,000 subscribers and a 1.2% engagement rate. Creator B has 45,000 subscribers and a 6% engagement rate. On subscriber count alone, A wins. On engagement, B's audience is five times more attentive. The brand books B for a native integration in a niche that matches B's content, and B's conversion rate is 4x A's in the same campaign. Engagement was the signal that found the better fit.